[jjj]

I try the flex 3 beta 2 today.

<mx:Application xmlns:mx="http://www.adobe.com/2006/mxml"
		layout="vertical"
		verticalAlign="middle"
		backgroundColor="white" 
		xmlns:views="ne_views.*">

	<mx:XML id="imagesXML" source="../data/images.xml" />	
	<mx:HBox id="hBox">
	     <mx:Repeater id="rep" dataProvider="{imagesXML.image}">
	        		<views:THUMBNAIL
	        			  imageData="{rep.currentItem}"	        	
	        		/>		        			
	        				 
	    </mx:Repeater>
	</mx:HBox>

images.xml

</mx:Application>

<?xml version="1.0" encoding="utf-8"?>
<images>
	<image src="../images/Button.png" alt="Button" />
	<image src="../images/ButtonBar.png" alt="ButtonBar" />
	<image src="../images/CheckBox.png" alt="CheckBox" />
</images>

and

THUMBNAIL.mxml

<?xml version="1.0" encoding="utf-8"?>
<mx:Canvas xmlns:mx="http://www.adobe.com/2006/mxml" 

	verticalScrollPolicy="off"
	horizontalScrollPolicy="off">

	<mx:Script>
		<![CDATA[
		[Bindable]
		public var imageData:Object; 		
		]]>
	</mx:Script>
		        <mx:Image source="{imageData.currentItem.@src}"	      
	        	 />		
</mx:Canvas>

error:

Error: Unable to load ''.
   at .....

The problem is around mx:Image instance.The source path isn't set.
How wait for the XML to load before firing and event callback .
Can you help me?